R4.h

// Copyright 2023, UChicago Argonne, LLC
// All Rights Reserved
// Software Name: NEML2 -- the New Engineering material Model Library, version 2
// By: Argonne National Laboratory
// OPEN SOURCE LICENSE (MIT)
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#pragma once
 
#include "neml2/tensors/FixedDimTensor.h"
 
namespace neml2
{
class Scalar;
class SSR4;
class R5;
class Rot;
class WWR4;
 
class R4 : public FixedDimTensor<R4, 3, 3, 3, 3>
{
public:
  using FixedDimTensor<R4, 3, 3, 3, 3>::FixedDimTensor;
 
  R4(const SSR4 & T);
 
  R4(const WWR4 & T);
 
  R4 rotate(const Rot & r) const;
 
  R5 drotate(const Rot & r) const;
 
  Scalar operator()(TorchSize i, TorchSize j, TorchSize k, TorchSize l) const;
 
  R4 transpose(TorchSize d1, TorchSize d2) const;
 
  R4 transpose_minor() const;
 
  R4 transpose_major() const;
};
} // namespace neml2